I can't move the probe to a different shelf, because it sits in the recess in the pvc, below the heat tape.
Darn, I thought it seemed iffy, but the rack maker seems to make all his heat tapes this way and he said it was alright. No idea if that's true or not LOL.
I don't think the extension cord is surge protected. What kind of risks does not having a surge protected cord have?
Thanks for the reply Albert